PO.IPR.HW.DrainArea.Ellipse Function

Description:

Calculates horizontal well drainage area using ellipse geometry (Joshi), [acres].

Excel Function Syntax:

=PO.IPR.HW.DrainArea.Ellipse(L, b)

Parameters:

Parameter	Description
L	Length of the horizontal part of the well, [ft].
b	Half minor axis of an ellipse, [ft].

Related Functions

PO.IPR.GW.D

Calculates Non-Darcy flow coefficient (D) for gas well turbulence effects, [D/mscf]. Used as input to GW.PSS.Rate.NonDarcy.

PO.IPR.GW.PSS.Rate

Calculates gas well flow rate for pseudosteady state condition using Darcy flow approximation, [mscf/D].

PO.IPR.GW.PSS.Rate.NonDarcy

Calculates gas well stabilized flow rate for pseudosteady state condition with Non-Darcy flow equation, [mscf/D].

PO.IPR.GW.PSS.Time

Calculates time to reach pseudosteady state (stabilized flow boundary) in gas well, [h].

PO.IPR.HW.DrainArea.Rect

Calculates horizontal well drainage area using two half-circles at ends plus rectangle (Joshi), [acres].

Calculates pseudosteady state productivity index for horizontal well using Babu-Odeh method for a box-shaped, anisotropic reservoir, with a well placed parallel to X(box length)-direction, [STB/(d.psi)].

Missing a formula? Suggest a New Formula